Consider the pictured titration curve of an unknown acid with sodium hydroxide. Titration curve of pH versus milliliters of sodium hydroxide up to 45 milliliters. With 0 milliliters of sodium hydroxide added, the pH is 1.6. With 10 milliliters of sodium hydroxide added, the curve is flat and the pH is 2.3. With 20 milliliters of sodium hydroxide added, the curve is steeply changing and the pH is 4.7. With 30 milliliters of sodium hydroxide added, the curve is flat and the pH is 7.2. With 40 milliliters of sodium hydroxide added, the curve is steeply changing and the pH is 9.7. What is the best description of the unknown acid
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Ответ:
Caption: The following pictures are actually a challenge coin. Challenge coins were used as a sort of slap on the table and you gotta buy the drinks type thing, mainly used to challenge; "wow look at that." Anyway, this is particular due to the history of the code breakers who broke codes for the Japanese. Which aided in major naval and island victories, who aided America's attempt of island hopping to get closer to the Japan homeland.
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